Color-photographic recording material

ABSTRACT

s-Triazine compounds which contain in their molecule at least one sterically hindered phenol group and at least one polyalkylpiperidine group are effective optical stabilizers for photographic dyes and precursors thereof.

This application is a continuation, of now abandoned application Ser.No. 552,210, filed Nov. 17, 1983 abandoned.

The present invention concerns a colour-photographic recording materialwhich, in at least one light-sensitive silver halide emulsion layerand/or in at least one of the customary auxiliary layers, contains atleast one specific polyalkylpiperidine compound as a stabiliser.

Polyalkylpiperidines in the form of sterically hindered amines aregenerally known for use as optical stabilisers for organic materials, inparticular for polymers. It has also already been suggested, namely inGerman Offenlegungsschrift No. 2,126,954, to use polyalkylpiperidines ofthis type as agents against the fading of colour photographs. It hasfurther been suggested, namely in European Patent A No. 11,051, to use,as optical stabilisers for colour photographs, certainpolyalkylpiperidine derivatives which contain at least one phenol group.These polyalkylpiperidine derivatives are polyalkylpiperidine esters ofhydroxybenzylmalonic acids.

In continuing this research work it was found that s-triazinederivatives which contain in their molecule at least one stericallyhindered phenol group and at least one polyalkylpiperidine group have asurprisingly improved action.

Accordingly, the present invention provides a colour-photographicrecording material which, in at least a light-sensitive silver halideemulsion layer, an intermediate layer, an image-receiving layer and/or aprotective layer, contains, as a stabiliser, at least one s-triazinecompound which contains in its molecule at least one sterically hinderedphenol group and at least one polyalkylpiperidine group.

It was found that this molecular combination of sterically hinderedphenol groups and polyalkylpiperidine groups with s-triazine groups hasa very favourable effect on the stabilising action of the combinedcompounds. These stabilisers are in particular compounds of the formulaeI, II or III ##STR1## in which R^(I), R^(II) and R^(III), independentlyof one another, are each either

(a) a group of the formulae IV, V, VI or VIa ##STR2## in which p is zeroor a number from 1 to 12, r is an integer from 2 to 6, X is --O--, --S--or --NR⁵ --, X' is --O--, or --NR⁵ --, K is a direct bond, C₁ -C₆-alkylene or a group of the formula ##STR3## R¹ is hydrogen, C₁ -C₈-alkyl, C₅ -C₈ -cycloalkyl, C₇ -C₉ -phenylalkyl, phenyl or C₇ -C₁₀-alkylphenyl, R² is C₁ -C₈ -alkyl, C₅ -C₈ -cycloalkyl, C₇ -C₉-phenylalkyl, phenyl or C₇ -C₁₀ -alkylphenyl, R³ is hydrogen or methyl,R⁴ is hydrogen, C₁ -C₁₂ -alkyl, C₅ -C₈ -cycloalkyl, phenyl or benzyl, R⁵is hydrogen, C₁ -C₁₂ -alkyl, C₅ -C₁₂ -cycloalkyl, allyl or benzyl, and Lis --CN, --COCH₃ or --SO₂ CH₃, or

(b) a group of the formulae VII to XV ##STR4## in which Y and Y',independently of each other, are each --O-- or --N(R⁶)--, R⁶ ishydrogen, C₁ -C₁₈ -alkyl, C₃ -C₆ -alkenyl, C₅ -C₁₂ -cycloalkyl, C₇ -C₁₂-phenylalkyl, C₃ -C₁₂ -alkoxyalkyl, C₄ -C₁₂ -dialkylaMinoalkyl, a groupof the formula --C_(s) H_(2s) -C'--CO--R¹⁴ or ##STR5## or a group of theformula XVI ##STR6## R is hydrogen or methyl, R⁷ is hydroxyl, C₁ -C₁₂-alkyl, C₃ -C₆ -alkenyl, C₃ -C₄ -alkynyl, C₇ -C₁₂ -phenylalkyl,glycidyl, C₁ -C₄ -alkyl which is substituted by halogen, --CN, --COOR¹⁵or --CON(R¹⁶) (R¹⁷), a group of the formula --CO--R¹⁴, --CO--OR¹⁵,--CO--N(R¹⁶) (R¹⁷), --CH₂ --CH(R¹⁸)--OR¹⁹, --SO--R²⁰, --SO₂ --R²⁰,--OR¹⁵ or --OOC--R¹⁴, R⁸ is hydrogen, --CN, --COOR¹⁵, CONH₂ or--CON(R¹⁶) (R¹⁷), R⁹ is methyl or ethyl, R¹⁰ is hydrogen, C₁ -C₁₂-alkyl, C₅ -C₈ -cycloalkyl or benzyl, and R¹¹ is C₁ -C₁₂ -alkyl, C₅ -C₈-cycloalkyl or phenyl, or R¹⁰ and R¹¹, together with the C atom to whichthey are bonded, are a C₅ -C₁₂ -cycloalkane or alkylcycloalkane ring,R¹² is hydrogen, --OR²¹, --OOC--R¹⁴ or --N(R²²)--CO--R¹⁴, and R¹³ ishydrogen, --CN, --COOR¹⁵, --CONH₂ or --CON(R¹⁶)(R¹⁷), or R¹² and R¹³ aretogether a group of the formulae ##STR7## q is 1 or 2, s is an integerfrom 2 to 6, Y" is --O-- or --NR^(5a) --, in which R^(5a) is defined inthe same way as R⁵ or is a group of the formula XVI, R¹⁴ is hydrogen, C₁-C₁₂ -alkyl, C₂ -C₆ -alkenyl, chloromethyl, C₅ -C₁₂ -cycloalkyl, C₇ -C₁₂-phenylalkyl, phenyl, C₇ -C₁₀ -alkylphenyl or such phenyl, phenylmethylor phenylethyl as is substituted by 1 or 2 C₁ -C₄ -alkyl groups and ahydroxyl group, R¹⁵ is C₁ -C₁₂ -alkyl, allyl, benzyl or cyclohexyl, R¹⁶is C₁ -C₁₂ -alkyl, allyl, cyclohexyl, benzyl or phenyl, and R¹⁷ ishydrogen, C₁ -C₈ -alkyl or allyl, or R¹⁶ and R¹⁷, together with the Natom, are a 5- or 6-membered heterocyclic ring, R¹⁸ is hydrogen, C₁ -C₄-alkyl, C₂ -C₁₃ -alkoxymethyl, phenyl or phenoxymethyl, R¹⁹ is hydrogen,C₁ -C₁₂ -alkyl, --CO--R¹⁴ or --CO--N(R¹⁶) (R¹⁷), R²⁰ is C₁ -C₁₂ -alkyl,phenyl or C₇ -C₂₂ -alkylaryl, R²¹ is hydrogen, C₁ -C₁₂ -alkyl, allyl orbenzyl, R²² is hydrogen, C₁ -C₁₂ -alkyl, C₅ -C₁₂ -cycloalkyl or benzyl,R²³ is hydrogen, methyl or ethyl, R²⁴ and R^(24a), independently of eachother, are each H or C₁ -C₄ -alkyl, and R²⁵ is hydrogen, C₁ -C₁₂ -alkyl,C₃ -C₁₂ -alkoxyalkyl, C₅ -C₁₂ -cycloalkyl, allyl or benzyl, or

(c) a group of the formula --OR²⁶, --SR²⁷, --P(O)(OR²⁸)₂ or--N(R²⁹)(R³⁰), in which R²⁶ is hydrogen, C₁ -C₁₈ -alkyl, C₃ -C₆-alkenyl, C₃ -C₁₂ -alkoxyalkyl, C₄ -C₁₂ -dialkylaminoalkyl, phenyl, C₇-C₂₂ -alkylaryl, C₇ -C₉ -phenylalkyl or C₅ -C₁₂ -cycloalkyl, R²⁷ is C₁-C₁₈ -alkyl, C₅ -C₁₂ -cycloalkyl, phenyl, C₇ -C₁₂ -alkylphenyl, C₇ -C₉-phenylalkyl, --CH₂ COOR³¹ or --CH₂ CH₂ COOR³¹, R³¹ is hydrogen or C₁-C₁₂ -alkyl, R²⁸ is C₁ -C₁₂ -alkyl, phenyl, tolyl, benzyl or a group ofthe formula XVI, R²⁹ and R³⁰, independently of each other, are eachhydrogen, C₁ -C₁₂ -alkyl, C₂ -C₄ -alkyl which is substituted by C₁ -C₄-alkoxy, R¹⁴ --COO-- or C₂ - C₈ -dialkylamino, C₅ -C₁₂ -cycloalkyl, C₃-C₆ -alkenyl or C₇ -C₉ -phenylalkyl, or R²⁹ and R³⁰, together with the Natom to which they are bonded, are a 5- or 6-membered heterocyclic ring,and R^(III) can also be a group of the formula XVII ##STR8## in which tis 1, 2 or 3, A is a direct bond, a --(CH₂)_(q) -- group or a--Y'--C_(s) H_(2s) -- group, and M, if t=1, is a divalent group, C₂ -C₁₂-alkylene, C₄ -C₈ -alkenylene, xylylene or a radical of the formula--CH₂ --C.tbd.C--CH₂ -- --CH₂ --COO--B--OOC--CH₂ --, --CH₂ -CH(OH)--CH₂--, --CH₂ CH(OH)CH₂ --D-- CH₂ CH(OH)CH₂ --, --CH₂ -CH(R¹⁸)--OOC--R³³--COO--CH(R¹⁸)--CH₂ -- or --CO--NH--G--NH--CO--, in which B is C₂ -C₁₂-alkylene, C₄ -C₈ -oxaalkylene or cyclohexylene, D is a divalent radicalof the formula --O--R³² --0-- or --OOC--R³³ --COO--, in which R³² is C₂-C₁₂ -alkylene, C₆ -C₁₂ -cycloalkylene, C₆ -C₁₂ -arylene or--phenyl--Z--phenylene, and Z is --O--, --HC₂ --, >C(CH₃)₂ or --SO₂, R³³is a direct bond, C₁ -C₁₂ -alkylene, C₂ -C₆ -alkenylene, C₆ -C₁₂-cycloalkylene or cycloalkenylene or C₆ -C₁₂ -arylene, and G is adivalent aliphatic, cycloaliphatic, aromatic or aromatic-aliphaticradical having 6-15 C atoms, M, if t=2, is a trivalent radical of theformula

    T--CH.sub.2 CH(OH)CH.sub.2 ].sub.3 or R.sup.34 --COO-CH(R.sup.18)-CH.sub.2 ].sub.3

in which T is a trivalent radical of the formulae ##STR9## and R³⁴ is atrivalent aliphatic hydrocarbon radical having 3-10 carbon atoms or atrivalent aromatic hydrocarbon radical having 6-10 C atoms, and M, ift=3, is a tetravalent radical of the formula

    Q--CH.sub.2 CH(OH)CH.sub.2 ].sub.4 or R.sup.35 --COO-CH(R.sup.18)-CH.sub.2 ].sub.4

in which Q is a group of the formula ##STR10## and R³⁵ is a tetravalentaliphatic hydrocarbon radical having 4-10 C atoms or a tetravalentaromatic hydrocarbon radical having 6-12 C atoms, R^(IV) is the m-valentradical of a polyamine or of a polyol, and m is an integer from 2 to 6,R^(V) is a divalent group of the formula --Y--R³⁶ --Y-- or ##STR11## inwhich R³⁶ is C₂ -C₁₂ -alkylene, C₅ -C₁₂ -cycloalkylene, C₈ -C₁₂-aralkylene, C₆ -C₁₂ -arylene, C₄ -C₈ -alkylene which is interrupted byO or NR⁵ or a group of the formula ##STR12## in which M' is a divalentgroup of the formula M, and R^(36a) is C₂ -C₁₂ -alkylene, C₅-cycloalkylene, C₈ -C₁₂ -aralkylene, C₆ -C₁₂ -arylene or C₄ -C₈-alkylene which is interrupted by O or NR⁵, n is 2 to 50, and E and E'are each terminal groups, and at least one of the radicals R^(I), R^(II)and R^(III) contains a sterically hindered phenol group and at least oneof the radicals R^(I), R^(II), R^(III), R^(IV) and R^(V) contains apolyalkylpiperidine radical.

In these definitions, alkyl groups R¹⁸, R²⁴ or R^(24a) can be, forexample, methyl, ethyl, isopropyl, n-propyl, n-butyl, isobutyl ortert.-butyl. C₁ -C₈ -Alkyl R¹, R² and R¹⁷ can furthermore also be, forexample, n-amyl, isoamyl, n-hexyl, 2-ethylbutyl, isoheptyl or n-octyl.C₁ -C₁₂ -Alkyl R⁴, R⁵, R⁷, R¹⁰, R¹¹, R¹⁴, R¹⁵, R¹⁶, R¹⁹, R²⁰, R²⁵, R²⁹and R³¹ can furthermore also be, for example, n-decyl, isononyl orn-dodecyl. C₁ -C₁₈ -Alkyl R⁶, R¹⁷ and R²⁶ can furthermore also be, forexample, n-tetradecyl, n-hexyldecyl or n-octadecyl.

C₃ -C₁₂ -Alkoxyalkyl R⁶, R²⁵ and R²⁶ can be, for example,2-methoxyethyl, 2-ethoxyethyl, 2-isopropoxyethyl, 3-methoxypropyl,2-butoxyethyl, 2-butoxypropyl or 2-hexyloxyethyl. A C₂ -C₁₃-alkoxymethyl R¹⁸ can be, for example, methoxymethyl, ethoxymethyl,butoxymethyl, 2-ethylbutoxymethyl, hexyloxymethyl or dodecyloxymethyl.

C₄ -C₁₂ -dialkylaminoalkyl R⁶ and R²⁶ can be, for example,2-dimethylaminoethyl, 3-diethylaminopropyl, 2-dipropylaminomethyl or3-dibutylaminopropyl.

C₁ -C₄ -Alkoxy-, R¹⁴ COO-- or C₂ -C₈ -dialkylamino-substituted C₂ -C₄-alkyl R²⁹ and R³⁰ can be, for example, 2-methoxyethyl, 2-butoxyethyl,3-ethoxypropyl, 2-butoxypropyl, 2-acetoxyethyl, 2-benzoyloxypropyl,3-lauroyloxypropyl, 2-propionyloxybutly, 2-dimethylaminoethyl,3-diethylaminopropyl or 3-dibutylaminopropyl,

C₅ -C₈ -Cycloalkyl R¹, R², R⁴ and R¹⁰ can be, for example, cyclopentyl,cyclohexyl, methylcyclohexyl, dimethylcyclohexyl, cycloheptyl orcyclooctyl. C₅ -C₁₂ -Cyclohexyl R⁵, R⁶, R¹⁴, R²², R²⁵, R²⁶, R²⁷, R²⁹ andR³⁰ can furthermore also be, for example, cyclodecyl or cyclododecyl.

A C₂ -C₆ -alkenyl R¹⁴ can be, for example, vinyl, 2-propenyl, allyl,2-methylvinyl, 2,2-dimethylvinyl, 3-methylallyl or 2-butylvinyl. C₃ -C₆-Alkenyl R⁶, R⁷, R²⁶ and R²⁹ can be, for example, allyl, methallyl,3-methylallyl or 3-dimethylallyl.

A C₃ -C₄ -alkynyl R⁷ can be, for example, propargyl or3-methylpropargyl.

A cycloalkane or alkylcycloalkane ring formed by R¹⁰ and R¹¹ togetherwith the C atom to which they are bonded can be, for example, acyclopentane, cyclohexane, methylcyclohexane, dimethylcyclohexane,cycloheptane, cyclo- octane or cyclododecane ring.

C₇ -C₉ -Phenylalkyl R¹, R², R²⁶ and R²⁷ can be, for example, benzyl,2-phenylethyl, 3-phenylpropyl or 1-phenylisopropyl. C₇ -C₁₂ -PhenylalkylR⁶, R⁷, R¹⁴, R²⁹ and R³⁰ can furthermore also be, for example3-phenylbutyl or 6-phenylhexyl.

C₇ -C₁₀ -Alkylphenyl R¹, R² and R¹⁴ can be, for example, tolyl, xylyl,ethylphenyl, isopropylphenyl or tert.-butylphenyl. A C₇ -C₁₂-alkylphenyl R²⁷ can furthermore also be, for example, isoamylphenyl orn-hexylphenyl. C₇ -C₂₂ -Alkylaryl R²⁰ and R²⁶ can furthermore also be,for example, methylnaphthyl, butylnaphthyl, dibutylphenyl,dioctylphenyl, nonylphenyl or dodecylphenyl.

R¹⁶ and R¹⁷, as well as R²⁹ and R³⁰, in each case together with the Natom to which they are bonded, can be a 5- or 6-membered heterocyclicring, which can be, for example, a pyrrolidine, piperidine, morpholineor 4-methylpiperazine ring.

C₂ -C₁₂ -Alkylene B, M, R³², R³⁶ and R^(36a) can be unbranched alkylene,for example dimethylene, trimethylene, tetramethylene, hexamethylene,oxtamethylene, decamethylene or dodecamethylene, or branched alkylene,for example 1,2-propylene, 1,2-butylene, 2,2-dimethyl-1,3-propylene or2,5,5-trimethylhexamethylene. A C₁ -C₁₂ -alkylene R³³ can furthermorealso be methylene.

A C₄ -C₈ -oxaalkylene B can be, for example, 3-oxapent-1,5-ylene,4-oxahept-2,6-ylene or 3,6-dioxaoct-1,8-ylene. O- or NR⁵ -interrupted C₄-C₆ -alkylene R³⁶ and R^(36a) can furthermore also be, for example,3-azapent-1,5-ylene, 4-azahept-2,6-ylene or3-(methylaza)-pent-1,5-ylene.

A C₄ -C₈ -alkenylene M can be, for example, 2-buten-1,4-ylene,3-hexen-1,6-ylene or 4-octen-1,8-ylene. A C₂ -C₆ -alkenylene R³³ can be,for example, vinylene, methylvinylene or 2-buten-1,4-ylene.

C₆ -C₁₂ -Cycloalkylene R³², R³³, R³⁶ and R^(36a) can be, for example,1,4-cyclohexylene, 1,2-cyclohexylene,1,4-endomethylenecyclohex-1,2-ylene, 1,4-dimethylenecyclohexane,4,4'-dicyclohexylene or 1,4-decahydronaphthylene.

C₆ ∝C₁₂ -Arylene R³², R³³, R³⁶ and R^(36a) can be, for example,1,2-phenylene, 1,3-phenylene, 1,4-naphthylene or 4,4'-diphenylene. C₈-C₁₂ Aralkylene R³⁶ and R^(36a) can be, for example, m-xylylene,p-xylylene or 1,4-dimethylenenaphthalene.

As a divalent aliphatic, cycloaliphatic, aromatic or aromatic-aliphaticradical having 6-15 C atoms, G can be, for example, dimethylene,tetramethylene, hexamethylene, octamethylene, dodecamethylene,2,2,4-trimethylhexamethylene, cyclohexylene,4,4'-dicylcohexylenemethane, 1,4-phenylene, 2,4-tolylene,1,4-naphthylene or 4,4'-diphenylmethane.

As a trivalent aliphatic radical having 3-10 C atoms, R³⁴ can be, forexample, propane-1,2,3-triyl, 1,1,1-trimethylene-ethane or1,1,1-trimethylenepropane.

A trivalent aromatic radical R³⁴ can be, for example,benzene-1,2,4-triyl or naphthalene-1,4,5-triyl.

As a tetravalent aliphatic radical having 4-10 C atoms, R³⁵ can be, forexample 1,2,3,4-butanetetrayl or tetramethylenemethane. A tetravalentaromatic radical R³⁵ can be, for example, benzene-1,2,4,5-tetrayl,naphthalene-1,4,5,8-tetrayl or diphenyl-3,4,3',4'-tetrayl.

R^(IV) can be the n-valent radical of a polyamine, for example thedivalent radical of 1,2-diaminoethane, trimethylenediamine,tetramethylenediamine, hexamethylenediamine, octamethylenediamine,decamethylenediamine, dodecamethylenediamine,4,4'-diaminodiphenylmethane, benzidine, 1,3-diaminobenzene,1,4-diaminocyclohexane, 4,4'-diaminodiphenyl oxide or1,4-di(aminoethyl)-cyclohexane, the trivalent radical of diethyltriamineor dipropylenetriamine, the tetravalent radical or triethylenetetramineor 1,5,8,12-tetraazododecane, the pentavalent radical oftetraethylenepentamine or 1,5,8,12,16-pentaazahexadecane, or thehexavalent radical of pentaethylenehexamine. As an n-valent radical of apolyol, R^(IV) can be, for example, the divalent radical of ethyleneglycol, 1,2-propylene glycol, 1,4-butanediol, 1,6-hexanediol,1,8-octanediol, diethylene glycol, triethylene glycol, hydroquinone,pyrocatechol, 1,4-xylylene glycol, N-methyldiethanolamine,cyclohexane-1,4-diol, 1,4-di(hydroxymethyl)-cyclohexane or2,2-diphenylolpropane, the trivalent radical of glycerol,trimethylolpropane, trimethylolethane or tris(4-hydroxyphenyl)-methane,the tetravalent radical of pentaerythritol or erythritol, thepentavalent radical of xylitol or arabitol, or the hexavalent radical ofdipentaerythritol.

Preferred stabilisers are those compounds of the formula, I, II or IIIwhich contain in their molecule at least one sterically hindered phenolgroup and at least one N-substituted 2,2,6,6-tetramethylpiperidinegroup.

In preferred stabilisers of the formula I, R^(I), R^(II) and R^(III) areeach

(a) a group of the formula IVa ##STR13## in which p is an integer from 1to 4, and X, R¹ and R² are as defined above,

(b) a group of the formulae VIIa or XVa ##STR14## in which Y is --O-- or--NR⁶ --, and R⁶, R⁷, R¹² and s are as defined above, or

(c) a group of the formula --OR²⁶, --SR²⁷, --P(O)(OR²⁸)₂ or--N(R²⁹)(R³⁰), in which R²⁶, R²⁷, R²⁸, R²⁹ and R³⁰ are as defined above,and at least one of the radicals R^(I), R^(II) and R^(III) contains asterically hindered phenol group, and at least one of the radicalsR^(I), R^(II) and R^(III) contains an N-substituted2,2,6,6-tetramethylpiperidine group.

In particularly preferred stabilisers of the formula I, R^(I), R^(II)and R^(III), independently of one another, are each

(a) a group of the formula IVa in which R¹ is hydrogen or C₁ -C₄ -alkyl,R² is C₁ -C₄ -alkyl, and X and p are as defined above, or

(b) a group of the formula VIIa or XVa in which Y is --O-- or --NR⁶ --,R⁶ is hydrogen, C₁ -C₈ -alkyl, allyl, cyclohexyl, benzyl or a group ofthe formula --C_(s) H_(2s) --X'--CO--R¹⁴ in which s=2 or 3, X' is --O--and R¹⁴ is such phenyl, phenylmethyl or phenylethyl as is substituted by1 or 2 C₁ -C₄ -alkyl groups and a hydroxyl group, R⁷ is methyl, allyl,benzyl, 2-hydroxyethyl, acetyl, acryloyl or a group of the formula--CON(R¹⁶)(R^(4/7)) in which R¹⁶ is C₁ -C₈ -alkyl, cyclohexyl or phenyl,and R¹⁷ is hydrogen or C₁ -C₈ -alkyl, and R¹² is hydrogen, or

(c) a group of the formula --OR²⁶, --SR²⁷ or --N(R²⁹)(R³⁰) in which R²⁶is C₁ -C₁₂ -alkyl, phenyl, C₇ -C₂₂ -alkylaryl, benzyl or cyclohexyl, R²⁷is C₁ -C₁₂ -alkyl, cyclohexyl, phenyl, --CH₂ COO(C₁ -C₁₂ -alkyl) or--CH₂ CH₂ COO(C₁ -C₁₂ -alkyl), and R²⁹ and R³⁰ are each hydrogen, C₁-C₁₂ -alkyl, benzyl or allyl.

In preferred stabilisers of the formula II, those are preferred, inwhich m=2 and R^(IV) is a divalent group of the formula ##STR15## inwhich R³⁷ is C₂ -C₁₂ -alkylene, C₄ -C₈ -alkylene which is interrupted by--O-- or --NR⁵ --, C₆ -C₁₅ -arylene, C₈ -C₁₂ -aralkylene or C₅ -C₁₂-cycloalkylene, and R⁵ and R⁶ are as defined above, or m=3 and R^(IV) isa trivalent group of the formula ##STR16## or m=4 and R^(IV) is atetravalent group of the formula ##STR17## in which a is 2 or 3, b is2-12 and R⁶ is as defined above.

In preferred stabilisers of the formula III, R^(V) is a divalent groupof the formula --N(R⁶)--R^(36a) --N(R⁶)-- in which R^(36a) and R⁶ are asdefined above.

In particularly preferred stabilisers of the formula III, the terminalgroup E is predominantly hydrogen, and the terminal group E' ispredominantly a group of the formula --N(R⁶)--R^(36a) --NHR⁶.

In further particularly preferred stabilisers of the formula III, R^(I)is a group of the formula ##STR18## and R^(V) is a group of the formula##STR19## in which w is 2-6 and R¹, R² , X, p and R⁷ are as definedabove, in particular in which p is 1-4, X is --O--, --S--, --NH-- or--N(C₁ -C₄ -alkyl)--, R¹ is hydrogen or C₁ -C₄ -alkyl, R² is C₁ -C₄-alkyl, w is 2-6, and R⁷ is methyl, allyl, benzyl, 2-hydroxyethyl,acetyl, acryloyl or a group of the formula --CON(R¹⁶)(R¹⁷) in which R¹⁶is C₁ -C₈ -alkyl, cyclohexyl or phenyl and R¹⁷ is hydrogen or C₁ -C₈-alkyl.

The compounds of the formula I are known from U.S. Pat. 4,161,592 or canbe prepared analogously thereto, namely by stepwise reaction of cyanuricchloride with the corresponding compounds R^(I) H, R^(II) H and R^(III)H.

If R^(III) is a group of the formula XVII, the compounds can be preparedby reacting the corresponding compounds of the formula I in whichR^(III) is a group of the formula ##STR20## with a dihalide, withepichlorohydrin or with a diepoxide,triepoxide or tetraepoxide asdescribed in U.S. Pat. No. 4,294,963 or with a diisocyanate of theformula OCN-G-NCO as described in Swiss Patent Application No. 9524/82.

The compounds of the formula II can be prepared analogously to U.S. Pat.No. 4,108,829 by stepwise reaction of cyanuric chloride with themonofunctional compounds R^(I) H and R^(II) H and with a polyamineR^(IV) (H)_(m).

The compounds of the formula III are polymers or oligomers and can beprepared analogously to U.S. Pat. No. 4,086,204, by stepwise reaction ofcyanuric chloride with a monofunctional compound R^(I) H and with adifunctional compound H--R^(V) --H, in which the terminal group E can beH or a group of the formula ##STR21## and the terminal group E' can beCl or a --R^(V) --H group.

The nature of the terminal groups can be controlled in such a way byusing an excess of one or the other polycondensation component that oneterminal group is predominantly present at both ends of the molecule. Inaddition, the terminal groups can be modified by chemical reactions, asdescribed in U.S. Pat. No. 4,234,707. For example, terminalchlorotriazine groups can be converted into terminal hydroxytriazinegroups by hydrolysis.

The degree of polycondensation n is a number average which can rangefrom 2 to 50. The polycondensate is always a mixture of products ofdifferent molecular weights. The products preferably have an averagedegree of polycondensation n=2-10. This restriction of the molecularweight can be obtained in a manner known per se by using one of the twocomponents in excess or by adding a monofunctional compound as a chainterminator.

Specific examples of stabilisers of the formula I are the compounds ofthe following formulae:

    ______________________________________     ##STR22##

    ______________________________________    (1)  R.sup.I = R.sup.II = R.sup.III =          ##STR23##    (2)  R.sup.I = R.sup.II = R.sup.III =     ##STR24##    (3)          ##STR25##          ##STR26##    (4)          ##STR27##          ##STR28##    (5)          ##STR29##          ##STR30##    (6)  R.sup.I = SC.sub.8 H.sub.17          ##STR31##          ##STR32##    (7)  R.sup.I = P(O)(OC.sub.2 H.sub.5).sub.2          ##STR33##          ##STR34##    (8)          ##STR35##          ##STR36##    (9)          ##STR37##          ##STR38##    (10) R' = NHCH.sub.2 C(CH.sub.3).sub.2 CH.sub.2 C(CH.sub.3).sub.3         R.sup.II = R.sup.III =          ##STR39##    (11) R' =          ##STR40##          ##STR41##          ##STR42##          ##STR43##    (12) R = COCHCH.sub.2    (13)          ##STR44##    (14)          ##STR45##    (15) R.sup.I =   R.sup.II = R.sup.III =          ##STR46##    ______________________________________

Examples of stabilisers of the formula II are the following compounds:

    ______________________________________     ##STR47##

    ______________________________________    (16) R.sup.I = R.sup.II =          ##STR48##         m = 2         R.sup.IV =          ##STR49##    (17) R.sup.I =          ##STR50##          ##STR51##         m = 3          ##STR52##    (18) R.sup.I = R.sup.II =          ##STR53##         m = 4          ##STR54##    ______________________________________

Examples of compounds of the formula III are the following compounds:

    ______________________________________     ##STR55##

    ______________________________________    (19)          ##STR56##         R.sup.V =          ##STR57##    (20) R.sup.I =          ##STR58##          ##STR59##    ______________________________________

The stabilisers of the formula I, II and III can be incorporated into aphotographic material in a known manner, either alone or together withother compounds.

In general, the stabilisers, alone or together with other compounds, inparticular with the colour couplers, are incorporated into thephotographic material in the form of a dispersion which contains nosolvent, a high- or low- boiling solvent or a mixture of such solvents.A further suitable way of incorporating the stabilisers is toincorporate them into the photographic material together with a polymerin the form of a latex, alone or together with further compounds.

The dispersions are then used to prepare the layers ofcolour-photographic recording materials. These layers can be, forexample, intermediate or protective layers, but in particularlight-sensitive (blue-, green- and red-sensitive) silver halide emulsionlayers in which, in the course of developing the exposed recordingmaterial, the bluish green (cyan), purple (magenta) and yellow dyes areformed from the corresponding colour couplers.

The silver halide layers can contain any colour couplers, in particularbluish green, purple and yellow couplers, which are used to form saiddyes and hence the colour pictures.

Since the substrate has an effect on the action and stability of thestabilisers, it is preferable to use substrates (solvents, polymers)which, together with the stabilisers, make the materials to bestabilised as stable as possible.

In general the stabilisers are incorporated into layers whichadditionally contain a silver halide dispersion prepared and sensitisedby customary methods. However, they can also be present in layersadjacent to layers containing silver halide.

The photographic materials according to the invention have aconventional structure and components which enhance, or at least do notadversely affect, the effectiveness of the stabilisers.

In the photographic recording material according to the presentinvention, the stabilisers of the formula I, II and III can be combinedin the same layer not only with the colour couplers but also, inaddition, with ultraviolet absorbers or other optical stabilisers.

If the diffusion transfer method is used the stabiliser can also beincorporated into a receiving layer.

The colour-photographic materials according to the invention can beprocessed in a customary manner. Furthermore, in the course of or afterthe processing they can be treated in a manner which further increasestheir stability, for example by treating them in a stabiliser bath or byapplying a protective coating.

In certain cases the stabilisers to be used according to the inventionare also suitable for protecting colour-photographic layers in which thedyes are directly incorporated into the emulsion and the image isgenerated by selective bleaching.

The amount of stabiliser(s) can vary within wide limits and is, forexample, within the range from 1 to 2,000 mg, preferably 100 to 800 andin particular 200-500 mg per m² of the layer into which it or they is orare incorporated.

If the photographic material contains one or more UV absorbers, it orthey can present in one layer together with the stabiliser or in anadjacent layer. The amount of UV absorber can vary within the widelimits and is, for example, within the range from 200 to 2,000 mg,preferably 400 to 1,000 mg, per m² of the layer. Examples of suitable UVabsorbers are those of the benzophenone, acrylonitrile, thiazolidone,benzotriazole, oxazole, thiazole and imidazole type.

The colour pictures obtained with recording material according to theinvention by exposure to light and developing have very good lightfastness to visible and ultraviolet light. The compounds of the formulaI, II and III are virtually colourless, so that they do not discolourthe pictures; moreover, they are highly compatible with the customaryphotographic additives present in the individual layers. Because theyare so highly effective they can be used in a low amount, and in thisway they are prevented from precipitating or crystallising out when theyare incorporated in the form of an organic solution into the aqueousbinder emulsions which are used for preparing photographic layers. Thestabilisers of the formula I, II and III have no adverse effect on theindividual process steps necessary after exposure of the photographicrecording material to obtain the colour pictures. Furthermore, theso-called pressure fogging, which frequently arises in the case ofblue-sensitive emulsions, can be largely suppressed. Pressure foggingcan arise, for example, when photographic materials (silver halideemulsion layers which are present on a support of natural or syntheticmaterials) are subjected to mechanical stresses, for example twisting,bending or rubbing, in the course of the preparation or in the course ofthe treatment before the development (T. H. James, The Theory ofPhotographic Process, 4th edition, Macmillan, New York, N.Y. 1977, page23 et seq., page 166 et seq.).

EXAMPLE

0.087 of the yellow coupler of the formula ##STR60## and 0.026 g of oneof the stabilizrs given in the table below are dissolved in 2.0 ml of amixture of tricresyl phosphate/ethyl acetate (1.5 g in 100 ml). To thissolution are added 7.0 ml of a 6% gelatin solution, 0.5 ml of an 8%solution of the wetting agent of the formula ##STR61## inisopropanol/water (3:4) and 0.5 ml of water, and the mixture isemulsified using ultrasound of 100 watt power for 5 minutes.

2.5 ml of the emulsion thus obtained has added to it 2.0 ml of a silverbromide emulsion containing 6.0 g of silver per liter, 0.7 ml of a 1%aqueous solution of the curing agent of the formula ##STR62## and 3.8 mlof water, and the mixture is brought to pH 6.5 and is poured onto whitesubbed plastic-coated paper drawn over a glass plate.

When the film has solidified it is dried at room temperature in a dryingcabinet using circulating air.

7 days later, samples cut to a size of 35×180 mm are exposed under astep wedge to 3,000 Lux's and are then processed in Kodak's Ektaprint® 2process.

The yellow weges thus obtained are irradiated in an Atlas Weather-Ometerusing a 2,500 w xenon lamp to a total of 42 kjoule/cm² (a comparativesample contains no optical stabiliser). The resulting colour densityloss is determined by measuring the colour density at λ_(max) using adensitometer (TR 924 A supplied by Macbeth).

The results are given in the following table.

    ______________________________________    Stabiliser     Percentage colour    compound No.   density loss    ______________________________________    1              22    2              19    8              23    9              23    10             22    without        36    stabiliser    ______________________________________

What is claimed is:
 1. A colour-photographic recording material which,in at least a light-sensitive silver halide emulsion layer, anintermediate layer, an image-receiving layer/and or a protective layer,contains, as a stabiliser, a light stabilizing amount of at least ones-triazone compound which contains in its molecule at least onesterically hindered phenol group and at least one polyalkylpiperidinegroup.
 2. A colour-photographic recording material according to claim 1,which contains, as a stabiliser, a compound of the formulae I, II or III##STR63## in which R^(I), R^(II) and R^(III), independently of oneanother, are each either(a) a group of the formulae IV, V, VI or VIa##STR64## in which p is zero or an integer of from 1-12, r is an integerfrom 2-6, X is --O--, --S-- or --NR⁵ --, X' is --O-- or --NR⁵ --, K is adirect bond, C₁ -C₆ -alkylene or a group of the formula ##STR65## R¹ ishydrogen, C₁ -C₈ -alkyl, C₅ -C₈ -cycloalkyl, C₇ -C₉ -phenylalkyl, phenylor C₇ -C₁₀ -alkylphenyl, R² is C₁ -C₈ -alkyl, C₅ -C₈ -cycloalkyl, C₇ -C₉-phenylalkyl, phenyl or C₇ -C₁₀ -alkylphenyl, R³ is hydrogen or methyl,R⁴ is hydrogen, C₁ -C₁₂ -alkyl, C₅ -C₈ -cycloalkyl, phenyl or benzyl, R⁵is hydrogen, C₁ -C₁₂ -alkyl, C₁ -C₁₂ -cycloalkyl, allyl or benzyl, and Lis --CN, --COCH₃ or --SO₂ CH₃, or (b) a group of the formulae VII to XV##STR66## in which Y and Y', independently of each other, are each --O--or --N(R⁶)--, R⁶ is hydrogen, C₁ -C₁₈ -alkyl, C₃ -C₆ -alkenyl, C₅ -C₁₂-cycloalkyl, C₇ -C₁₂ -phenylalkyl, C₃ -C₁₂ -alkoxyalkyl, C₄ -C₁₂-dialkylaminoalkyl, a group of the formula --C_(s) H_(2s) --X'--CO--R¹⁴or ##STR67## or a group of the formula XVI ##STR68## R is hydrogen, ormethyl, R⁷ is hydroxyl, C₁ -C₁₂ -alkyl, C₃ -C₆ -alkenyl, C₃ -C₄-alkynyl, C₇ -C₁₂ -phenylalkyl, glycidyl, C₁ -C₄ -alkyl which issubstituted by halogen, --CN, --COOR¹⁵ or --CON(R¹⁶)(R¹⁷), a group ofthe formula --CO--R¹⁴, --CO--OR¹⁵, --CO--N(R¹⁶)(R¹⁷), --CH₂--CH(R¹⁸)--OR¹⁹, --SO--R²⁰, --SO₂ --R²⁰, --OR¹⁵ or --OOC--R¹⁴, R⁸ ishydrogen, --CN, --COOR¹⁵, CONH₂ or --CON(R¹⁶)(R¹⁷), R⁹ is methyl orethyl, R¹⁰ is hydrogen, C₁ --C₁₂ -alkyl, C₅ --C₈ -cycloalkyl or benzyl,and R¹¹ is C₁ -C₁₂ -alkyl, C₅ -C₈ -cycloalkyl or phenyl, or R¹⁰ and R¹¹,together with the C atom to which they are bonded, are a C₅ --C₁₂-cycloalkane or alkylcycloalkane ring, R¹² is hydrogen, --OR²¹,--OOC--R¹⁴ or --N(R²²)--CO--R¹⁴, and R¹³ is hydrogen, --CN, --COOR¹⁵,--CONH₂ or --CON(R¹⁶)(R¹⁷), or R¹² and R¹³ are together a group of theformulae ##STR69## q is 1 or 2, s is an integer from 2-6, Y" is --O-- or--NR^(5a) --, in which R^(5a) is defined in the same way as R⁵ or is agroup of the formula XVI, R¹⁴ is hydrogen, C₁ -C₁₂ -alkyl, C₂ -C₆-alkenyl, chloromethyl, C₅ -C₁₂ -cycloalkyl, C₇ -C₁₂ -phenylalkyl,phenyl, C₇ -C₁₀ -alkylphenyl or such phenyl, phenylmethyl or phenylethylas is substituted by 1 or 2 C₁ -C₄ -alkyl groups and a hydroxyl group,R¹⁵ is C₁ -C₁₂ -alkyl, allyl, benzyl or cyclohexyl, R¹⁶ is C₁ -C₁₂-alkyl, allyl, cyclohexyl, benzyl or phenyl, and R¹⁷ is hydrogen, C₁ -C₈-alkyl or allyl, or R¹⁶ and R¹⁷, together with the N atom, are a 5- or6-membered heterocyclic ring, R¹⁸ is hydrogen, C₁ -C₄ -alkyl, C₂ ∝C₁₃-alkoxymethyl, phenyl or phenoxymethyl, R¹⁹ is hydrogen, C₁ -C₁₂ -alkyl,--CO--R¹⁴ or --CO--N(R¹⁶)(R¹⁷), R²⁰ is C₁ -C₁₂ -alkyl, phenyl or C₇ -C₂₂-alkylaryl, R²¹ is hydrogen, C₁ -C₁₂ -alkyl, allyl or benzyl, R²² ishydrogen, C₁ -C₁₂ -alkyl, C₅ -C₁₂ -cycloalkyl or benzyl, R²³ ishydrogen, methyl or ethyl, R²⁴ and R^(24a), independently of each other,are each H or C₁ -C₄ -alkyl, and R²⁵ is hydrogen, C.sub. -C₁₂ -alkyl, C₃-C₁₂ -alkoxyalkyl, C₅ -C₁₂ -cycloalkyl, allyl or benzyl, or (c) a groupof the formula --OR²⁶, --SR²⁷, --P(O)(OR²⁸)₂ or --N(R²⁹)(R³⁰), in whichR²⁶ is hydrogen, C₁ -C₁₈ -alkyl, C₃ -C₆ -alkenyl, C₃ -C₁₂ -alkoxyalkyl,C₄ -C₁₂ -dialkylaminoalkyl, phenyl, C₇ -C₂₂ -alkylaryl, C₇ -C₉-phenylalkyl or C₅ -C₁₂ -cycloalkyl, R²⁷ is C₁ -C₁₈ -alkyl, C₅ -C₁₂-cycloalkyl, phenyl, C₇ -C₁₂ -alkylphenyl, C₇ -C₉ -phenylalkyl, --CH₂COOR³¹ or --CH₂ CH₂ COOR³¹, R³¹ is hydrogen or C₁ -C₁₂ -alkyl, R²⁸ is C₁-C₁₂ -alkyl, phenyl, tolyl, benzyl or a group of the formula XVI, R²⁹and R³⁰, independently of each other, are each hydrogen, C₁ -C₁₂ -alkyl,C₂ -C₄ -alkyl which is substituted by C₁ -C₄ -alkoxy, R¹⁴ --COO-- orC₂ - C₈ - dialkylamino, C₅ -C₁₂ -cycloalkyl, C₃ -C₆ -alkenyl or C₇ -C₉-phenylalkyl, or R²⁹ and R³⁰, together with the N atom to which they arebonded, are a 5- or 6-membered heterocyclic ring, and R^(III) can alsobe a group of the formula XVII ##STR70## in which t is 1, 2 or 3, A is adirect bond, a --(CH₂)_(q) --group or a --Y'--C_(s) H_(2s) --group, andM, if t=1, is a divalent group, C₂ -C₁₂ -alkylene, C₄ -C₈ -alkenylene,xylylene or a radical of the formula --CH₂ --C.tbd.C--CH₂ -- ##STR71##--CH₂ --COO--B--OOC--CH₂ --, --CH₂ --CH(OH)--CH₂ --, --CH₂ CH(OH)CH₂--D--CH₂ CH(OH)CH₂ --, --CH₂ --CH(R¹⁸)--OOC--R³³ --COO--CH(R¹⁸)--CH₂ --or --CO--NH--G--NH--CO--, in which B is C₂ -C₁₂ -alkylene, C₄ -C₈-oxaalkylene or cyclohexylene, D is a divalent radical of the formula--O--R³² --O-- or --OOC--R³³ --COO--, in which R³² is C₂ -C₁₂ -alkylene,C₆ -C₁₂ -cycloalkylene, C₆ -C₁₂ -arylene or -phenylene-Z-phenylene, andZ is --O--, --CH₂ --, >C(CH₃)₂ or --SO₂, R³³ is a direct bond, C₁ -C₁₂-alkylene, C₂ -C₆ -alkenylene, C₆ -C₁₂ -cycloalkylene or cycloalkenyleneor C₆ -C₁₂ -arylene, and G is a divalent aliphatic, cycloaliphatic,aromatic or aromatic-aliphatic radical having 6- 15 C atoms, M, if t=2,is a trivalent radical of the formula

    T--CH.sub.2 CH(OH)CH.sub.2 ].sub.3 or R.sup.34 --COO--CH(R.sup.18 )--CH.sub.2 ].sub.3

in which T is a trivalent radical of the formulae ##STR72## and R³⁴ is atrivalent aliphatic hydrocarbon radical having 3-10 carbon atoms or atrivalent aromatic hydrocarbon radical having 6-10 C atoms, and M, ift=3, is a tetravalent radical of the formula

    Q--CH.sub.2 CH(OH)CH.sub.2 ].sub.4 or R.sup.35 --COO--CH(R.sup.18)--CH.sub.2 ].sub.4

in which Q is a group of the formula ##STR73## and R³⁵ is a tetravalentaliphatic hydrocarbon radical having 4-10 C atoms or a tetravalentaromatic hydrocarbon radical having 6-12 C atoms, R^(IV) is the m-valentradical of a polyamine or of a polyol, and m is an integer from 2 to 6,R^(V) is a divalent group of the formula --Y--R³⁶ --Y-- or ##STR74## inwhich R³⁶ is C₂ -C₁₂ -alkylene, C₅ -C₁₂ -cycloalkylene, C₈ -C₁₂-aralkylene, C₆ -C₁₂ -arylene, C₄ -C₈ -alkylene which is interrupted byO or NR⁵ or a group of the formula ##STR75## in which M' is a divalentgroup of the formula M, and R^(36a) is C₂ -C₁₂ -alkylene, C₅ -C₁₂-cycloalkylene, C₈ -C₁₂ -aralkylene, C₆ -C₁₂ -arylene or C₄ -C₈-alkylene which is interrupted by O or NR⁵, n is 2 to 50, and E and E'are each terminal groups, and at least one of the radicals R^(I), R^(II)and R^(III) contains a sterically hindered phenol group and at least oneof the radicals R^(I), R^(II), R^(III), R^(IV) and R^(V) contains apolyalkylpiperidine radical.
 3. A colour-photographic recording materialaccording to claim 2, which contains, as a stabiliser, a compound whichis of the formula I, II or III and which contains in its molecule atleast one sterically hindered phenol group and at least oneN-substituted 2,2,6,6-tetramethylpiperidine group.
 4. Acolour-photographic recording material according to claim 2, whichcontains, as a stabiliser, a compound of the formula I in which R^(I),R^(II) and R^(III), independently of one another, are each(a) a group ofthe formula IVa ##STR76## in which p is an integer from 1 to 4, and X,R¹ and R² are as defined in claim 2, (b) a group of the formulae VIIa orXVa ##STR77## in which Y is --O-- or --NR⁶ --, and R⁶, R⁷, R¹² and s areas defined in claim 2, or (c) a group of the formula --OR²⁶, --SR²⁷,--P(O) (OR²⁸)₂ or --N(R²⁹) (R³⁰), in which R²⁶, R²⁷, R²⁸, R²⁹ and R³⁰are as defined in claim 2, and at least one of the radicals R^(I),R^(II) and R^(III) contains a sterically hindered phenol group, and atleast one of the radicals R^(I), R^(II) and R^(III) contains anN-substituted 2,2,6,6-tetramethylpiperidine group.
 5. Acolour-photographic recording material according to claim 4, whichcontains, as a stabiliser, a compound of the formula I in which R^(I),R^(II) and R^(III), independently of one another, are each(a) a group ofthe formula IVa in which R¹ is hydrogen or C₁ -C₄ -alkyl, R² is C₁ -C₄-alkyl, and X and p are as defined in claim 4, or (b) a group of theformula VIIa or XVa in which Y is --O-- or --NR⁶ --, R⁶ is hydrogen, C₁-C₈ -alkyl, allyl, cyclohexyl, benzyl or a group of the formula --C_(s)H_(2s) --X'--CO--R¹⁴ in which s=2 or 3, X' is --O-- and R¹⁴ is suchphenyl, phenylmethyl or phenylethyl as is substituted by 1 or 2 C₁ -C₄-alkyl groups and a hydroxyl group, R⁷ is methyl, allyl, benzyl,2-hydroxyethyl, acetyl, acryloyl or a group of the formula--CON(R¹⁶)(R¹⁷) in which R¹⁶ is C₁ -C₈ -alkyl, cyclohexyl or phenyl, andR¹⁷ is hydrogen or C₁ -C₈ -alkyl, and R¹² is hydrogen, or (c) a group ofthe formula --OR²⁶, --SR²⁷ or --N(R²⁹)(R³⁰) in which R²⁶ is C₁ -C₁₂-alkyl, phenyl, C₇ -C₂₂ -alkylaryl, benzyl or cyclohexyl, R²⁷ is C₁ -C₁₂-alkyl, cyclohexyl, phenyl, --CH₂ COO(C₁ -C₁₂ -alkyl) or --CH₂ CH₂COO(C₁ -C₁₂ -alkyl), and R²⁹ and R³⁰ are each hydrogen, C₁ -C₁₂ -alkyl,benzyl or allyl.
 6. A colour-photographic recording material accordingto claim 2, which contains, as a stabiliser, a compound of the formulaII in which m=2 and R^(IV) is a divalent group of the formula ##STR78##in which R³⁷ is C₂ -C₁₂ -alkylene, C₄ -C₈ -alkylene which is interruptedby --O-- or --NR⁵ --, C₆ -C₁₅ -arylene, C₈ -C₁₂ -aralkylene or C₅ -C₁₂-cycloalkylene, and R⁵ and R⁶ are as defined in claim
 2. 7. Acolour-photographic recording material according to claim 2, whichcontains, as a stabiliser, a compound of the formula II in which m=3 andR^(IV) is a trivalent group of the formula ##STR79## or m=4 and R^(IV)is a tetravalent group of the formula ##STR80## in which a is 2 or 3, bis 2-12, and R⁶ is as defined in claim
 2. 8. A colour-photographicrecording material according to claim 2, which contains, as astabiliser, a compound of the formula III in which R^(V) is a divalentgroup of the formula --N(R⁶)--R^(36a) --N(R⁶)-- in which R^(36a) and R⁶are as defined in claim
 2. 9. A colour-photographic recording materialaccording to claim 8, wherein, in the compound of the formula III, theterminal group E is hydrogen and the terminal group E' is a group of theformula --N(R⁶)--R^(36a) --NHR⁶.
 10. A colour-photographic recordingmaterial according to claim 8, which contains, as a stabiliser, acompound of the formula III in which R^(I) is a group of the formula##STR81## and R^(V) is a group of the formula ##STR82## in which w is2-6.
 11. A colour-photographic recording material according to claim 10,which contains, as a stabiliser, a compound of the formula III in whichR^(I) is a group of the formula ##STR83## and R^(V) is a group of theformula ##STR84## in which p is 1-4, X is --O--, --S--, --NH-- or --N(C₁-C₄ -alkyl)-, R¹ is hydrogen or C₁ -C₄ -alkyl, R² is C₁ -C₄ -alkyl, w is2-6 and R⁷ is methyl, allyl, benzyl, 2-hydroxyethyl, acetyl, aryloyl ora group of the formula --CON(R¹⁶)(R¹⁷) in which R¹⁶ is C₁ -C₈ -alkyl,cyclohexyl or phenyl and R¹⁷ is hydrogen or C₁ -C₈ -alkyl.
 12. Acolour-photographic recording material according to claim 1, which, inaddition to a stabiliser of the formula I, II or III, contains anoptical stabiliser from the class of the ultraviolet absorbers.
 13. Acolour-photographic recording material according to claim 1, whichcontains 1 to 2,000 mg of compound of the formula I, II or III per m².